Make gradient effect creation fail if texture LUT creation fails

Bug: skia:6198
Change-Id: Ib8fb273564ca54ee9e6e045ac67e191af705a37a
Reviewed-on: https://skia-review.googlesource.com/19260
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/shaders/gradients/SkSweepGradient.cpp b/src/shaders/gradients/SkSweepGradient.cpp
index 1e583c2ee0..58e34fdaa6 100644
--- a/src/shaders/gradients/SkSweepGradient.cpp
+++ b/src/shaders/gradients/SkSweepGradient.cpp
@@ -144,8 +144,10 @@ public:
     class GLSLSweepProcessor;
 
     static sk_sp<GrFragmentProcessor> Make(const CreateArgs& args) {
-        return sk_sp<GrFragmentProcessor>(new GrSweepGradient(args));
+        auto processor = sk_sp<GrSweepGradient>(new GrSweepGradient(args));
+        return processor->isValid() ? std::move(processor) : nullptr;
     }
+
     ~GrSweepGradient() override {}
 
     const char* name() const override { return "Sweep Gradient"; }
@@ -267,6 +269,9 @@ sk_sp<GrFragmentProcessor> SkSweepGradient::asFragmentProcessor(const AsFPArgs&
     sk_sp<GrFragmentProcessor> inner(GrSweepGradient::Make(
         GrGradientEffect::CreateArgs(args.fContext, this, &matrix, SkShader::kClamp_TileMode,
                                      std::move(colorSpaceXform), SkToBool(args.fDstColorSpace))));
+    if (!inner) {
+        return nullptr;
+    }
     return GrFragmentProcessor::MulOutputByInputAlpha(std::move(inner));
 }